Penis pump with a special pump to be operated one-handedly. With a digital PSI meter and an pressure release valve. Simply insert the penis into the cylinder, use the pump to create a vacuum and switch on the vibration. Youcan read your penis' imposing size from the centimetre scale. With centimetre scale. Black/transparent. Total length 28 cm, length cylinder 20 cm, inner Ø ca. 6 cm, outer Ø ca. 6.4 cm. Material: ABS, TPE. (Please order batteries separately: 2 x AA).